无人机倾斜摄影测量三维建模研究

Research on 3D Modeling of UAV Tilt Photogrammetry

利用倾斜摄影测量来获取大场景的三维模型,是目前比较高效的手段。利用Context Capture软件对典型区域进行实景三维建模,并对模型成果进行精度评定。结果表明,X方向中误差为1. 5 cm,Y方向中误差为2. 3 cm,点位中误差为2. 7 cm,模型精度良好。在建模过程中,进行了测区提取,针对密集匹配点云结果出现的问题,提出一种了用户连接点的添加方案,对实际项目三维建模有一定参考意义。

Using tilt photogrammetry to obtain a three-dimensional(3D)model of a large scene is currently a relatively efficient method.In this paper,I use Context Capture software to perform real-life 3D modeling of typical areas and evaluate the accuracy of the model results.The results show that the error in the X direction is 1.5 cm,the error in the Y direction is 2.3 cm,and the error in the point position is 2.7 cm.The accuracy of the model is high.During the modeling process,the measurement area was extracted.Aiming at the problem of dense matching point cloud results,a scheme of adding user connection points was proposed,which has certain reference significance for actual project 3D modeling.